/* Copyright (C) 2008  Romolo Camplani, Marco Fortunato, Marco Marelli, Guido Rota, Fabio A. Schreiber et al.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.dei.perla.parser.util;

import org.dei.perla.parser.grammar.Token;

/**
 * Classe per la memorizzazione di OptionallyQualifiedIdentifier
 */
public class OptionallyQualifiedIdentifier {

	private Token qualifier;
	private Token identifier;
	
	/**
	 * Costruttore di classe
	 * @param identifier identificatore (obbligatorio)
	 * @param qualificator qualificatore (null se assente)
	 */
	public OptionallyQualifiedIdentifier(Token identifier, Token qualificator) {
		
		this.qualifier = qualificator;
		this.identifier = identifier;
	}
	
	/**
	 * Costruttore di classe
	 * @param identifier identificatore (obbligatorio)
	 */
	public OptionallyQualifiedIdentifier(Token identifier) {
		
		this.qualifier = null;
		this.identifier = identifier;
	}
	
	/**
	 * @return qualificatore (null se non presente)
	 */
	public Token getQualifier() {
		return qualifier;
	}
	
	/**
	 * @return identificatore
	 */
	public Token getIdentifier() {
		return identifier;
	}
	
	public String toString()
	{
		if(qualifier == null)
		{
			return identifier.image;
		}
		else
		{
			return identifier.image + "." + qualifier.image;
		}
	}
}
